<style type="text/css">
    .dashboard-wrapper{
        text-align: center;
        background-color: #ffffff;
    }
</style>
<div class="sub-nav">
    <ul>
        <li><a href="" class="heading">访问统计</a></li>
        <li><a href="">最近三个月</a></li>
    </ul>
</div>
<div class="dashboard-wrapper">
    <img src="/img/admin/kaifa.gif"/>
</div>